GENERAL DESCRIPTION

The ICS840008-01 is an 8 output LVCMOS/LVTTL Synthesizer designed to generate 125MHz for Gigabit Ethernet applications and is a member of the HiPerClocksTM family of high performance clock solutions from ICS. The ICS840008-01 uses ICS’ 3rd generation low phase noise VCO technology and can achieve 1ps or lower typical random rms phase jitter, easily meeting Gigabit Ethernet jitter requirements. The ICS840008-01 is packaged in a small 24-pin SSOP package.

FEATURES

• Eight LVCMOS/LVTTL outputs, 15Ω typical output impedance

• Output frequency range: 125MHz - 160MHz

• Crystal oscillator interface, 25MHz - 32MHz crystal

• VCO range: 500MHz - 640MHz

• RMS phase jitter (1.875MHz - 20MHz): 0.52ps (typical)

• Output skew: 150ps (maximum) (design target)

• Voltages supply modes:

Core/Output

3.3V/3.3V

3.3V/2.5V

3.3V/1.8V

2.5V/2.5V

2.5V/1.8V

• 0°C to 70°C ambient operating temperature

• Industrial temperature information available upon request